Black sesame pigment extract from sesame dregs by subcritical CO2: Extraction optimization, composition analysis, binding copper and antioxidant protection

Bai, Liang; Cheng, Xin; Xu, Jingzhi; Wang, Xiangxing; Zhao, Hui; Tao, Yongqing; Huang, He

doi:10.1016/j.lwt.2018.10.040

Cited by 7 publications

(2 citation statements)

References 47 publications

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“…The black color of sesame seeds is mainly due to the presence of melanin [ 21 ]. Plant melanin can chelate many chemical elements, including Cu, Mn, Cd, and Ni [ 21 , 22 ]. Further studies can be performed focusing on the correlation between melanin and the multi-element profiles.…”

Section: Resultsmentioning

confidence: 99%

Discrimination of Black and White Sesame Seeds Based on Targeted and Non-Targeted Platforms with Chemometrics: From Profiling towards Identification of Chemical Markers

Wang

Zhang

et al. 2022

Foods

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The present study was conducted to clarify the differences in the multi-element, volatile organic compound, fatty acid, and metabolite fingerprints between black and white sesame seeds. A total of 53 chemical elements, 32 volatile flavor compounds, 40 fatty acids, and 283 metabolites were identified and evaluated in the two groups of sesame seeds. Univariate and multivariate statistics indicated a distinct separation between the two groups of sesame seeds. A panel of 16 chemical elements, 3 volatile compounds, 8 individual fatty acids, and 54 metabolites with p value < 0.05 and variable importance in projection score > 1 were selected as the most important discriminants for the two types of sesame seeds. Overall, these data reveal the influence of genotype on the chemical composition of sesame seeds. Our findings also demonstrate that the hybrid model of instrumental analysis and chemometrics is feasible for the discrimination of black and white sesame seeds.

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Section: Resultsmentioning

confidence: 99%

Discrimination of Black and White Sesame Seeds Based on Targeted and Non-Targeted Platforms with Chemometrics: From Profiling towards Identification of Chemical Markers

Wang

Zhang

et al. 2022

Foods

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“…It is very interesting to underline that melanin is one of the few materials that is already present in organisms in the form of nanoaggregates. Although the AOX properties of natural melanin are well documented [ 66 , 67 , 68 , 69 , 70 , 71 , 72 , 73 , 74 , 75 , 76 , 77 ], and in addition to the ubiquitous presence of melanin in nature, its most recent and promising application is based on the development of synthetic analogs [ 78 ]. The main reason for this is that melanin-like materials can be easily produced from low cost and biocompatible precursors via very versatile and environmentally friendly processes [ 79 , 80 ].…”

Section: Aox Properties Of Melanin Npmentioning

confidence: 99%

Recent Applications of Melanin-like Nanoparticles as Antioxidant Agents

et al. 2023

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Nanosized antioxidants are highly advantageous in terms of versatility and pharmacokinetics, with respect to conventional molecular ones. Melanin-like materials, artificial species inspired by natural melanin, combine recognized antioxidant (AOX) activity with a unique versatility of preparation and modification. Due to this versatility and documented biocompatibility, artificial melanin has been incorporated into a variety of nanoparticles (NP) in order to give new platforms for nanomedicine with enhanced AOX activity. In this review article, we first discuss the chemical mechanisms behind the AOX activity of materials in the context of the inhibition of the radical chain reaction responsible for the peroxidation of biomolecules. We also focus briefly on the AOX properties of melanin-like NP, considering the effect of parameters such as size, preparation methods and surface functionalization on them. Then, we consider the most recent and relevant applications of AOX melanin-like NPs that are able to counteract ferroptosis and be involved in the treatment of important diseases that affect, e.g., the cardiovascular and nervous systems, as well as the kidneys, liver and articulations. A specific section will be dedicated to cancer treatment, since the role of melanin in this context is still very debated. Finally, we propose future strategies in AOX development for a better chemical understanding of melanin-like materials. In particular, the composition and structure of these materials are still debated, and they present a high level of variability. Thus, a better understanding of the mechanism behind the interaction of melanin-like nanostructures with different radicals and highly reactive species would be highly advantageous for the design of more effective and specific AOX nano-agents.

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Extraction of Natural Pigments Using Supercritical Carbon Dioxide and Its Application on Different Fabrics

Elmaaty,

Sorour

2023

Sustainable Textiles: Production, Processing, Manufacturing &Amp; Chemistry

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Black sesame pigment extract from sesame dregs by subcritical CO2: Extraction optimization, composition analysis, binding copper and antioxidant protection

Cited by 7 publications

References 47 publications

Discrimination of Black and White Sesame Seeds Based on Targeted and Non-Targeted Platforms with Chemometrics: From Profiling towards Identification of Chemical Markers

Discrimination of Black and White Sesame Seeds Based on Targeted and Non-Targeted Platforms with Chemometrics: From Profiling towards Identification of Chemical Markers

Recent Applications of Melanin-like Nanoparticles as Antioxidant Agents

Extraction of Natural Pigments Using Supercritical Carbon Dioxide and Its Application on Different Fabrics

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